diff --git a/requests/api.py b/requests/api.py
index 2d8ffdc3..856f0b3a 100644
--- a/requests/api.py
+++ b/requests/api.py
@@ -19,7 +19,7 @@ def request(method, url, **kwargs):
     :param method: method for the new :class:`Request` object.
     :param url: URL for the new :class:`Request` object.
     :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
-    :param data: (optional) Dictionary or list of tuples ``[(key, value)]`` (will be form-encoded), bytes, or file-like object to send in the body of the :class:`Request`. The list of tuple version is to allow duplication of fields.
+    :param data: (optional) Dictionary or list of tuples ``[(key, value)]`` (will be form-encoded), bytes, or file-like object to send in the body of the :class:`Request`.
     :param json: (optional) json data to send in the body of the :class:`Request`.
     :param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`.
     :param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`.